Major Life Event Extraction from Twitter based on Congratulations/Condolences Speech Acts Jiwei Li author Alan Ritter author Claire Cardie author Eduard Hovy author 2014-10 text Proceedings of the 2014 Conference on Empirical Methods in Natural Language Processing (EMNLP) Alessandro Moschitti editor Bo Pang editor Walter Daelemans editor Association for Computational Linguistics Doha, Qatar conference publication li-etal-2014-major 10.3115/v1/D14-1214 https://aclanthology.org/D14-1214/ 2014-10 1997 2007